I always find this an interesting discussion as I've assembled numerous ARF's for people thru the years. Minimum charge is $200.00 and the maximum depends on the complexity, average cost is in the $300-$400 range, kind of like CGRetired said. I will teach you how to fly for free but I won't put your toys together for nothing. If you can't take time to assemble it yourself I do not believe you can expect someone to do it for nothing. If you can get it done for a beer or pizza remember you get what you pay for.